diff -urN uClibc++-0.2.2-orig/include/istream_helpers uClibc++-0.2.2/include/istream_helpers
--- uClibc++-0.2.2-orig/include/istream_helpers	2007-06-04 00:51:12.000000000 +0200
+++ uClibc++-0.2.2/include/istream_helpers	2007-12-30 01:10:17.000000000 +0100
@@ -69,7 +69,8 @@
 		typename traits::int_type c;
 		while(true){
 			c = stream.rdbuf()->sgetc();
-			if(c != traits::eof() && isspace(c) == false && (isdigit(c) || c == '.' || c == ',' )){
+			if(c != traits::eof() && isspace(c) == false &&
+				(isdigit(c) || c == '.' || c == ',' || ((c == '-' || c == '+') && temp.size() == 0) )){
 				stream.rdbuf()->sbumpc();
 				temp.append(1, traits::to_char_type(c));
 			}else{